DC Fans

Pelonis Technologies Inc. offers advanced designs in DC fans that provide exceptional quality and high performance. PTI DC fans are known for their reliable, quiet and cost-effective capabilities that function best under a low-pressure environment. DC fans offer an additional advantage of a long life span since a DC fan can consume up to 60 percent less power than other fans.

DC fans are directly proportional to voltage which lets them run at the necessary speed for optimum cooling. Various Fans-Tech products are available in a variety of voltages, are RoHS compliant, and are manufactured in accordance with internationally recognized standards for maximum safety. PTI offers a wide array of DC centrifugal fans, axial fans, inline duct and box fans.

For standard applications requiring higher airflow in fan sizes up to 92mm. Available with multiple features for improved fan operation and performance including Pulse Width Modulation (PWM). 5V, 12V, 24V, or 48V.

For demanding applications requiring higher airflow in fan sizes up to 172mm with HIGH AIRFLOW - HIGH PRESSURE - LOW POWER consumption. Available with multiple features for improved fan operation and performance. 24V or 48V.

For demanding applications requiring higher airflow in fan sizes up to 172mm with HIGH AIRFLOW - HIGH PRESSURE - LOW POWER consumption. Available features include Advanced Pulse Width Modulation (PWM) and extra fan features for improved efficiency and performance. 12V, 24V, or 48V.

For very demanding applications in 120mm fan sizes requiring higher performance with EXTRA HIGH AIRFLOW and EXTRA HIGH PRESSURE. Available features include Advanced Pulse Width Modulation (PWM) and extra fan features for maximum performance and efficiency. 12V, 24V, or 48V.

Intelligent Motion Controls

Intelligent Motion Controls are additional features that can be added to select DC fans to help improve performance and efficiency. Various controls include Tachometer, Rotation Detection, PWM speed control, Life Detection, and others.

This guide serves to educate end users on not only the engineering “how” of DC Fan intelligent motion controls, but also the “why,” including operating efficiency suitable for green applications, as well as improved system performance, reliability and life expectancy.

DC Fans Selection Guide

Size: Inches

Size: MM

CFM

m3/min

inH2O

mmAq

dBA

0.98 x 0.39

25 x 10

1.4 - 2.9

0.039 - 0.083

0.078 - 0.315

1.98 - 8.00

18 - 34

1.18 x 0.39

30 x 10

2.7 - 4.2

0.075 - 0.120

0.086 - 0.229

2.19 - 5.82

18 - 29

1.57 x 0.39

40 x 10

3.9 - 8.0

0.110 - 0.227

0.068 - 0.266

1.73 - 6.75

19 - 37

1.57 x 0.79

40 x 20

4.9 - 10.9

0.139 - 0.308

0.094 - 0.342

2.40 - 5.74

21 - 32

1.57 x 1.10

40 x 28

8.3 - 24.8

0.236 - 0.703

0.154 - 1.291

3.91 - 32.79

32 - 61

1.97 x 0.39

50 x 10

8.1 - 15.7

0.230 - 0.446

0.070 - 0.279

1.78 - 7.09

26 - 40

1.97 x 0.57

50 x 15

9.9 - 15.5

0.280 - 0.438

0.097 - 0.274

0.054 - 0.121

26 - 39

2.36 x 0.39

60 x 10

11.3 - 17.5

0.318 - 0.497

0.054 - 0.121

0.054 - 0.121

25 - 35

2.36 x 0.79

60 x 20

13.8 - 33.3

0.391 - 0.944

0.109 - 0.606

0.109 - 0.606

25 - 47

2.36 x 0.98

60 x 25

15.1 - 32.6

0.426 - 0.923

0.129 - 0.576

0.129 - 0.576

26 - 46

2.76 x 0.98

70 x 25

19.5 - 35.8

0.551 - 1.012

0.074 - 0.246

0.074 - 0.246

25 - 41

3.15 x 0.59

80 x 15

24.5 - 40.7

0.692 - 1.152

0.072 - 0.198

0.072 - 0.198

27 - 40

3.15 x 0.98

80 x 25

26.6 - 53.7

0.754 - 1.521

0.074 - 0.286

0.074 - 0.286

24 - 41

3.62 x 0.98

92 x 25

40.4 - 77.0

1.145 - 2.180

0.095 - 0.338

0.095 - 0.338

28 - 46

3.62 x 1.26

92 x 32

50.5 - 86.1

1.429 - 2.437

0.157 - 0.458

0.157 - 0.458

32 - 45

4.72 x 0.98

120 x 25

78.2 - 176.8

2.213 - 5.005

0.207 - 0.976

0.207 - 0.976

37 - 58

4.72 x 1.26

120 x 32

80.9 - 239.9

2.293 - 6.794

0.247 - 1.229

0.247 - 1.229

37 - 65

4.72 x 1.50

120 x 38

104.5 - 236.8

2.958 - 6.706

0.286 - 1.239

0.286 - 1.239

40 - 65

6.77 x 2.00

172 x 51

185.9 - 372.8

5.236 - 10.555

0.275 - 1.272

0.275 - 1.272

47 - 66

The following points should be considered when selecting a cooling fan:

Select the fan from the performance curves shown inthe fan specification sheets. The volume of airflow required to cool the equipment can be determined if the internal heat dissipation and the total allowable temperature rise are known.